Sensors,
Год журнала:
2024,
Номер
24(14), С. 4724 - 4724
Опубликована: Июль 21, 2024
This
study
proposes
wide-band
frequency
selective
surfaces
(FSS)
with
polarization-independent
characteristics
that
are
tailored
for
IoT
applications.
The
design
consists
of
two
different
layers
band-stop
target
key
bands
in
sub-6
GHz:
3.7
GHz
(n77)
and
4.5
(n79),
offering
a
1.39
bandwidth
spanning
from
3.61
to
5.0
GHz.
also
presents
double-layer
structure
WB
property
fractional
32%.
Simulations
have
been
conducted
observe
variations
insertion
loss
across
incident
polarization
angles
ranging
0
60
degrees
both
TE
TM
modes
the
suggested
FSS
structures.
These
simulations
demonstrate
design's
independence.
Transparent
polyvinyl
chloride
dielectric
constant
2.77
thickness
1.48
mm
has
utilized
as
substrate
material.
optical
transmittance
is
calculated
be
96.7%
Layer
1,
95.7%
2,
92.4%
structure,
these
values
were
found
higher
compared
studies
literature.
proposed
well-suited
applications
due
their
high
transparency,
cost-effectiveness,
robust
high-performance
capabilities
suppression,
features.
results
3D
full-wave
measurement
equivalent
circuit
model
outcomes,
good
agreement
between
was
observed.
Electronics,
Год журнала:
2024,
Номер
13(13), С. 2673 - 2673
Опубликована: Июль 8, 2024
Intelligent
Transportation
Systems
(ITSs)
have
grown
rapidly
to
accommodate
the
increasing
need
for
safer,
more
efficient,
and
environmentally
friendly
transportation
options.
These
systems
cover
a
wide
range
of
applications,
from
control
management
self-driving
vehicles
improve
mobility
while
tackling
urbanization
concerns.
This
research
looks
closely
at
important
infrastructure
parts
vehicle-to-vehicle
(V2V)
communication
systems.
It
focuses
on
different
types
architectures
that
are
out
there,
including
decentralized
mesh
networks,
cloud-integrated
hubs,
edge
computing-based
architectures,
blockchain-enabled
hybrid
cellular
ad-hoc
AI-driven
dynamic
networks.
review
aims
critically
analyze
compare
key
components
these
with
their
contributions
limitations.
Finally,
it
outlines
open
challenges
future
technological
advancements,
encouraging
development
robust
interconnected
V2V
in
ITSs.
Sensors,
Год журнала:
2023,
Номер
23(15), С. 6938 - 6938
Опубликована: Авг. 4, 2023
This
literature
review
highlights
the
emergence
of
Internet
Things
(IoT)
and
proliferation
connected
devices
as
driving
force
behind
adoption
smart
spaces.
also
discusses
various
applications
spaces,
including
homes,
cities,
healthcare:
(1)
Background:
aim
this
research
is
to
provide
a
comprehensive
overview
concept
their
key
features,
technologies,
in
built
environments
urban
areas;
(2)
Methods:
The
study
adopts
qualitative
approach,
drawing
on
secondary
sources,
such
academic
journals,
reports,
online
sources;
(3)
Results:
findings
suggest
that
spaces
have
potential
transform
way
people
interact
with
environment
each
other.
They
could
improve
efficiency,
safety,
quality
life.
However,
there
are
concerns
about
privacy
security
relation
collection
use
personal
data;
(4)
Conclusions:
concludes
significant
theoretical
practical
implications
for
fields,
architecture,
planning,
healthcare.
include
need
new
models
frameworks
understand
complex
relationships
between
technology,
space,
society.
involve
development
standards
regulations
ensure
responsible
ethical
Sensors,
Год журнала:
2024,
Номер
24(14), С. 4724 - 4724
Опубликована: Июль 21, 2024
This
study
proposes
wide-band
frequency
selective
surfaces
(FSS)
with
polarization-independent
characteristics
that
are
tailored
for
IoT
applications.
The
design
consists
of
two
different
layers
band-stop
target
key
bands
in
sub-6
GHz:
3.7
GHz
(n77)
and
4.5
(n79),
offering
a
1.39
bandwidth
spanning
from
3.61
to
5.0
GHz.
also
presents
double-layer
structure
WB
property
fractional
32%.
Simulations
have
been
conducted
observe
variations
insertion
loss
across
incident
polarization
angles
ranging
0
60
degrees
both
TE
TM
modes
the
suggested
FSS
structures.
These
simulations
demonstrate
design's
independence.
Transparent
polyvinyl
chloride
dielectric
constant
2.77
thickness
1.48
mm
has
utilized
as
substrate
material.
optical
transmittance
is
calculated
be
96.7%
Layer
1,
95.7%
2,
92.4%
structure,
these
values
were
found
higher
compared
studies
literature.
proposed
well-suited
applications
due
their
high
transparency,
cost-effectiveness,
robust
high-performance
capabilities
suppression,
features.
results
3D
full-wave
measurement
equivalent
circuit
model
outcomes,
good
agreement
between
was
observed.
